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  2. Host Logic in PAC File May Not Direct Browser to the Intended Proxy Server

Host Logic in PAC File May Not Direct Browser to the Intended Proxy Server

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This article was previously published under Q258141

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Symptoms

When you click to select the Use automatic configuration script check box and then point the address to a .pac file that is similar to the following sample code, when you view a particular Web site you may not use the proxy server that you intend to in the .pac file. 
   if(dnsDomainIs(host,"testhost"))
        return "PROXY myproxya:80";
   else
        return "PROXY myproxyb:80"

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Cause

Under certain circumstances, Internet Explorer caches the proxy server and returns that cached proxy server instead of the server in the else branch of the code.

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Resolution

Internet Explorer 5.5

To resolve this problem, obtain the latest service pack for Internet Explorer version 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
276369� How to Obtain the Latest Internet Explorer 5.5 Service Pack

Internet Explorer 5.01

To resolve this problem, obtain the latest service pack for Internet Explorer version 5.01. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
267954� How to Obtain the Latest Internet Explorer 5.01 Service Pack

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Status

Internet Explorer 5.5

Microsoft has confirmed that this is a problem in Internet Explorer 5.5. This problem was first corrected in Internet Explorer version 5.5 Service Pack 1.

Internet Explorer 5.01

Microsoft has confirmed that this is a problem in Internet Explorer 5.01. This problem was first corrected in Internet Explorer version 5.01 Service Pack 2.

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Keywords: kbhotfixserver, kbbug, kbfix, kbie501presp2fix, kbie550presp1fix, kbie550sp1fix, kbqfe, kbqfe, KB258141

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Article Info
Article ID : 258141
Revision : 5
Created on : 1/27/2007
Published on : 1/27/2007
Exists online : False
Views : 336